This podcast gets into the complications around climate science. I agree that the models may not be very accurate, but very few scientists debate the negative impact of climate change.* That's why it's a good idea to implement no brainer changes such as ending subsidies for fossil fuels that waste money, increase fuel consumption and favor the rich over the poor. A carbon tax would be the next step (especially compared to subsidies for biofuels, solar, etc.) because it would drive energy efficiency. This advice (end consumption subsidies; tax scarcity) also applies to water, where efficient management improves reliability in drought or abundance**